功能：实现 Danding_Points 积分系统插件

- 新增积分系统插件，支持积分查询、签到、转账等核心功能
- 包含对应的测试脚本

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

danding_bot/plugins/danding_points/__init__.py

@@ -0,0 +1,18 @@
+from nonebot.plugin import PluginMetadata
+from .config import Config
+from .api import PointsAPI
+
+__plugin_meta__ = PluginMetadata(
+    name="Danding Points",
+    description="Global points/virtual currency system for danding-bot",
+    usage="Import points_api from this plugin to use the points API",
+    type="service",
+    homepage="https://github.com/danding-bot/danding-bot",
+    config=Config,
+)
+
+# Initialize configuration and API
+config = Config()
+points_api = PointsAPI(config)
+
+__all__ = ["points_api", "PointsAPI", "Config"]